static int netdev_sit_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { Tunnel *t = SIT(netdev); int r; assert(netdev); assert(m); assert(t); assert(IN_SET(t->family, AF_INET, AF_UNSPEC)); if (link) { r = sd_netlink_message_append_u32(m, IFLA_IPTUN_LINK, link->ifindex); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LINK attribute: %m"); } r = sd_netlink_message_append_in_addr(m, IFLA_IPTUN_LOCAL, &t->local.in); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LOCAL attribute: %m"); r = sd_netlink_message_append_in_addr(m, IFLA_IPTUN_REMOTE, &t->remote.in); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_REMOTE attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_IPTUN_TTL, t->ttl); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_TTL attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_IPTUN_PMTUDISC, t->pmtudisc); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_PMTUDISC attribute: %m"); return r; }
static void sit_init(NetDev *n) { Tunnel *t = SIT(n); assert(n); assert(t); t->pmtudisc = true; }
static void sit_init(NetDev *n) { Tunnel *t = SIT(n); assert(n); assert(t); t->pmtudisc = true; t->family = AF_UNSPEC; }
static int netdev_tunnel_verify(NetDev *netdev, const char *filename) { Tunnel *t = NULL; assert(netdev); assert(filename); switch (netdev->kind) { case NETDEV_KIND_IPIP: t = IPIP(netdev); break; case NETDEV_KIND_SIT: t = SIT(netdev); break; case NETDEV_KIND_GRE: t = GRE(netdev); break; case NETDEV_KIND_GRETAP: t = GRETAP(netdev); break; case NETDEV_KIND_IP6GRE: t = IP6GRE(netdev); break; case NETDEV_KIND_IP6GRETAP: t = IP6GRETAP(netdev); break; case NETDEV_KIND_VTI: t = VTI(netdev); break; case NETDEV_KIND_IP6TNL: t = IP6TNL(netdev); break; default: assert_not_reached("Invalid tunnel kind"); } assert(t); if (t->remote.in.s_addr == INADDR_ANY) { log_warning("Tunnel without remote address configured in %s. Ignoring", filename); return -EINVAL; } if (t->family != AF_INET && t->family != AF_INET6) { log_warning("Tunnel with invalid address family configured in %s. Ignoring", filename); return -EINVAL; } if (netdev->kind == NETDEV_KIND_IP6TNL) { if (t->ip6tnl_mode == _NETDEV_IP6_TNL_MODE_INVALID) { log_warning("IP6 Tunnel without mode configured in %s. Ignoring", filename); return -EINVAL; } } return 0; }
static int netdev_sit_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *m) { Tunnel *t = SIT(netdev); int r; assert(netdev); assert(link); assert(m); assert(t); assert(t->family == AF_INET); r = sd_rtnl_message_append_u32(m, IFLA_IPTUN_LINK, link->ifindex); if (r < 0) { log_netdev_error(netdev, "Could not append IFLA_IPTUN_LINK attribute: %s", strerror(-r)); return r; } r = sd_rtnl_message_append_in_addr(m, IFLA_IPTUN_LOCAL, &t->local.in); if (r < 0) { log_netdev_error(netdev, "Could not append IFLA_IPTUN_LOCAL attribute: %s", strerror(-r)); return r; } r = sd_rtnl_message_append_in_addr(m, IFLA_IPTUN_REMOTE, &t->remote.in); if (r < 0) { log_netdev_error(netdev, "Could not append IFLA_IPTUN_REMOTE attribute: %s", strerror(-r)); return r; } r = sd_rtnl_message_append_u8(m, IFLA_IPTUN_TTL, t->ttl); if (r < 0) { log_netdev_error(netdev, "Could not append IFLA_IPTUN_TTL attribute: %s", strerror(-r)); return r; } r = sd_rtnl_message_append_u8(m, IFLA_IPTUN_PMTUDISC, t->pmtudisc); if (r < 0) { log_netdev_error(netdev, "Could not append IFLA_IPTUN_PMTUDISC attribute: %s", strerror(-r)); return r; } return r; }
static void ipip_sit_init(NetDev *n) { Tunnel *t; assert(n); switch (n->kind) { case NETDEV_KIND_IPIP: t = IPIP(n); break; case NETDEV_KIND_SIT: t = SIT(n); break; default: assert_not_reached("invalid netdev kind"); } assert(t); t->pmtudisc = true; t->fou_encap_type = FOU_ENCAP_DIRECT; t->isatap = -1; }
static int netdev_tunnel_verify(NetDev *netdev, const char *filename) { Tunnel *t = NULL; assert(netdev); assert(filename); switch (netdev->kind) { case NETDEV_KIND_IPIP: t = IPIP(netdev); break; case NETDEV_KIND_SIT: t = SIT(netdev); break; case NETDEV_KIND_GRE: t = GRE(netdev); break; case NETDEV_KIND_GRETAP: t = GRETAP(netdev); break; case NETDEV_KIND_IP6GRE: t = IP6GRE(netdev); break; case NETDEV_KIND_IP6GRETAP: t = IP6GRETAP(netdev); break; case NETDEV_KIND_VTI: t = VTI(netdev); break; case NETDEV_KIND_VTI6: t = VTI6(netdev); break; case NETDEV_KIND_IP6TNL: t = IP6TNL(netdev); break; default: assert_not_reached("Invalid tunnel kind"); } assert(t); if (!IN_SET(t->family, AF_INET, AF_INET6, AF_UNSPEC)) { log_netdev_error(netdev, "Tunnel with invalid address family configured in %s. Ignoring", filename); return -EINVAL; } if (netdev->kind == NETDEV_KIND_VTI && (t->family != AF_INET || in_addr_is_null(t->family, &t->local))) { log_netdev_error(netdev, "vti tunnel without a local IPv4 address configured in %s. Ignoring", filename); return -EINVAL; } if (IN_SET(netdev->kind, NETDEV_KIND_VTI6, NETDEV_KIND_IP6TNL, NETDEV_KIND_IP6GRE) && (t->family != AF_INET6 || in_addr_is_null(t->family, &t->local))) { log_netdev_error(netdev, "vti6/ip6tnl/ip6gre tunnel without a local IPv6 address configured in %s. Ignoring", filename); return -EINVAL; } if (netdev->kind == NETDEV_KIND_IP6TNL && t->ip6tnl_mode == _NETDEV_IP6_TNL_MODE_INVALID) { log_netdev_error(netdev, "ip6tnl without mode configured in %s. Ignoring", filename); return -EINVAL; } return 0; }
static int netdev_tunnel_verify(NetDev *netdev, const char *filename) { Tunnel *t = NULL; assert(netdev); assert(filename); switch (netdev->kind) { case NETDEV_KIND_IPIP: t = IPIP(netdev); break; case NETDEV_KIND_SIT: t = SIT(netdev); break; case NETDEV_KIND_GRE: t = GRE(netdev); break; case NETDEV_KIND_GRETAP: t = GRETAP(netdev); break; case NETDEV_KIND_IP6GRE: t = IP6GRE(netdev); break; case NETDEV_KIND_IP6GRETAP: t = IP6GRETAP(netdev); break; case NETDEV_KIND_VTI: t = VTI(netdev); break; case NETDEV_KIND_VTI6: t = VTI6(netdev); break; case NETDEV_KIND_IP6TNL: t = IP6TNL(netdev); break; case NETDEV_KIND_ERSPAN: t = ERSPAN(netdev); break; default: assert_not_reached("Invalid tunnel kind"); } assert(t); if (IN_SET(netdev->kind, NETDEV_KIND_VTI, NETDEV_KIND_IPIP, NETDEV_KIND_SIT, NETDEV_KIND_GRE, NETDEV_KIND_GRETAP) && t->family != AF_INET) return log_netdev_error_errno(netdev, SYNTHETIC_ERRNO(EINVAL), "vti/ipip/sit/gre tunnel without a local/remote IPv4 address configured in %s. Ignoring", filename); if (IN_SET(netdev->kind, NETDEV_KIND_GRETAP, NETDEV_KIND_ERSPAN) && (t->family != AF_INET || in_addr_is_null(t->family, &t->remote))) return log_netdev_error_errno(netdev, SYNTHETIC_ERRNO(EINVAL), "gretap/erspan tunnel without a remote IPv4 address configured in %s. Ignoring", filename); if (IN_SET(netdev->kind, NETDEV_KIND_VTI6, NETDEV_KIND_IP6TNL, NETDEV_KIND_IP6GRE, NETDEV_KIND_IP6GRETAP) && t->family != AF_INET6) return log_netdev_error_errno(netdev, SYNTHETIC_ERRNO(EINVAL), "vti6/ip6tnl/ip6gre tunnel without a local/remote IPv6 address configured in %s. Ignoring", filename); if (netdev->kind == NETDEV_KIND_IP6GRETAP && (t->family != AF_INET6 || in_addr_is_null(t->family, &t->remote))) return log_netdev_error_errno(netdev, SYNTHETIC_ERRNO(EINVAL), "ip6gretap tunnel without a remote IPv6 address configured in %s. Ignoring", filename); if (netdev->kind == NETDEV_KIND_IP6TNL && t->ip6tnl_mode == _NETDEV_IP6_TNL_MODE_INVALID) return log_netdev_error_errno(netdev, SYNTHETIC_ERRNO(EINVAL), "ip6tnl without mode configured in %s. Ignoring", filename); if (t->fou_tunnel && t->fou_destination_port <= 0) return log_netdev_error_errno(netdev, SYNTHETIC_ERRNO(EINVAL), "FooOverUDP missing port configured in %s. Ignoring", filename); if (netdev->kind == NETDEV_KIND_ERSPAN && (t->erspan_index >= (1 << 20) || t->erspan_index == 0)) return log_netdev_error_errno(netdev, SYNTHETIC_ERRNO(EINVAL), "Invalid erspan index %d. Ignoring", t->erspan_index); return 0; }
static int netdev_ipip_sit_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { Tunnel *t; int r; assert(netdev); if (netdev->kind == NETDEV_KIND_IPIP) t = IPIP(netdev); else t = SIT(netdev); assert(m); assert(t); assert(t->family == AF_INET); if (link) { r = sd_netlink_message_append_u32(m, IFLA_IPTUN_LINK, link->ifindex); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LINK attribute: %m"); } r = sd_netlink_message_append_in_addr(m, IFLA_IPTUN_LOCAL, &t->local.in); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LOCAL attribute: %m"); r = sd_netlink_message_append_in_addr(m, IFLA_IPTUN_REMOTE, &t->remote.in); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_REMOTE attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_IPTUN_TTL, t->ttl); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_TTL attribute: %m"); r = sd_netlink_message_append_u8(m, IFLA_IPTUN_PMTUDISC, t->pmtudisc); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_PMTUDISC attribute: %m"); if (t->fou_tunnel) { r = sd_netlink_message_append_u16(m, IFLA_IPTUN_ENCAP_TYPE, t->fou_encap_type); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_ENCAP_TYPE attribute: %m"); r = sd_netlink_message_append_u16(m, IFLA_IPTUN_ENCAP_SPORT, htobe16(t->encap_src_port)); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_ENCAP_SPORT attribute: %m"); r = sd_netlink_message_append_u16(m, IFLA_IPTUN_ENCAP_DPORT, htobe16(t->fou_destination_port)); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_ENCAP_DPORT attribute: %m"); } if (netdev->kind == NETDEV_KIND_SIT) { if (t->sixrd_prefixlen > 0) { r = sd_netlink_message_append_in6_addr(m, IFLA_IPTUN_6RD_PREFIX, &t->sixrd_prefix); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_6RD_PREFIX attribute: %m"); /* u16 is deliberate here, even though we're passing a netmask that can never be >128. The kernel is * expecting to receive the prefixlen as a u16. */ r = sd_netlink_message_append_u16(m, IFLA_IPTUN_6RD_PREFIXLEN, t->sixrd_prefixlen); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_6RD_PREFIXLEN attribute: %m"); } if (t->isatap >= 0) { uint16_t flags = 0; SET_FLAG(flags, SIT_ISATAP, t->isatap); r = sd_netlink_message_append_u16(m, IFLA_IPTUN_FLAGS, flags); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_FLAGS attribute: %m"); } } return r; }